<script>
import Footer from '../components/Footer.vue';
export default {
  name: 'BusinessList',
  data(){
    return {
      orderTypeId: this.$route.query.orderTypeId,
      businessArr:[],
      user:{}
    }
  },
  created() {
    this.user=this.$getSessionStorage('user');

    //根据orderTypeId查询商家信息
    this.$axios.post('BusinessController/listBusinessByOrderTypeId',this.$qs.stringify({
      orderTypeId: this.orderTypeId,
    })).then(response=>{
      this.businessArr = response.data;
      //判断是否登陆
      if(this.user!=null){
        this.listCart();
      }
    }).catch(error=>{
      console.error(error);
    });
  },
  components: {
    Footer
  },
  methods: {
    listCart(){
      this.$axios.post('CartController/listCart',this.$qs.stringify({
        userId:this.user.userId,
      })).then(response => {
        let cartArr = response.data;
        //遍历所有食品列表
        for(let businessItem of this.businessArr){
          businessItem.quantity=0;
          for(let cartItem of cartArr){
            if(cartItem.businessId==businessItem.businessId){
              businessItem.quantity+=cartItem.quantity;
            }
          }
        }
        this.businessArr.sort();
      }).catch(error=>{
        console.error(error);
      });
    },
    toBusinessInfo(businessId){
      this.$router.push({path:'/businessInfo',query:{businessId: businessId}});
    }
  }
}
</script>

<template>
  <div class="wrapper">
    <!--header部分-->
    <header>
      <p>商家列表</p>
    </header>

    <!--商家列表部分-->
    <ul class="business">
      <li v-for="item in businessArr" @click="toBusinessInfo(item.businessId)">
        <div class="business-img">
          <img :src="item.businessImg" alt="" />
          <div class="business-img-quantity" v-show="item.quantity>0">{{item.quantity}}</div>
        </div>
        <div class="business-info">
          <h3>{{item.businessName}}</h3>
          <p>&#165;{{item.starPrice}}起送 | &#165;{{item.deliveryPrice}}配送</p>
          <p>{{item.businessExplain}}</p>
        </div>
      </li>
    </ul>

    <!--底部菜单部分-->
    <Footer></Footer>
  </div>
</template>

<style scoped>
/*总容器*/
.wrapper{
  width: 100%;
  height: 100%;
}

/*header*/
.wrapper header{
  width: 100%;
  height: 12vw;
  background-color: #0097FF;
  color: #fff;
  font-size: 4.8vw;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
}

/*商家列表部分*/
.wrapper .business{
  width: 100%;
  padding-bottom: 14vw;
  margin-top: 12vw;
  margin-bottom: 14vw;
}
.wrapper .business li{
  width: 100%;
  box-sizing: border-box;
  padding: 2.5vw;
  border-bottom: solid 1px #DDD;
  user-select: none;
  cursor: pointer;
  display: flex;
  align-items: center;
}
.wrapper .business li .business-img{
  position: relative;
}
.wrapper .business li .business-img img{
  width: 20vw;
  height: 20vw;
}
.wrapper .business li .business-img .business-img-quantity{
  width: 5vw;
  height: 5vw;
  background-color: red;
  color: #fff;
  font-size: 3.6vw;
  border-radius: 2.5vw;
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  right: -1.5vw;
  top: -1.5vw;
}
.wrapper .business li .business-info{
  margin-left: 3vw;
}
.wrapper .business li .business-info h3{
  font-size: 3.8vw;
  color: #555;
}
.wrapper .business li .business-info p{
  font-size: 3vw;
  color: #888;
  margin-top: 2vw;
}

</style>